Ax = 2x + 5 please explain
1 answer:
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Answer:
0.1402
Step-by-step explanation:
For each baby elk, there are only two possible outcomes. Either they survive adulthood, or they do not survive. The probability of an elk surviving adulthood is independent of other elks. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
Biologists estimate that a randomly selected baby elk has a 44% chance of surviving to adulthood.
This means that
Suppose researchers choose 7 baby elk at random to monitor.
This means that
What is the probability that more than 4 elk in the sample to survive to adulthood?
This is:
. So
0.1402 probability that more than 4 elk in the sample to survive to adulthood.